Improvement in metallic shutters



S. M GILLETT, B. T. SlLL & S. K. CRAW F0 RD.

, Metallic Shutters.

N0,l47,932 Patented Feb. 24,1874.

WITJV'ESSES. IA TiJYTOR Attorneys.

UNITED STATEs PATENT OEEIoE.

SYLVANUS M. GILLETT, ROBERT T. SILL, AND SAMUEL K. CRAWFORD,

OF WARSAW, MISSOURI.

IMPROVEMENT IN METALLIC SHUTTERS.

Specification forming part of Letters Patent No. 147,932, dated February24, 1874; application filed January 23, 1874.

To all whom it may concern:

Be it known that we, SYLVANUs M. GIL- LETT, ROBERT 'l. SILL, and SAMUELK. CRAW- FORD, of \Varsaw, in the county of Burton and in the State ofMissouri, have invented certain new and useful Improvements in Shuttersfor \Vindows and Doors; and do hereby declare that the following is afull, clear, and exact description thereof, reference being had to theaccompanying drawings and to the letters of reference marked thereon,making a part of this specification.

The nature of our invention consists in the construction and arrangementof folding-shutters for windows and doors, as will be hereinafter morefully set forth.

In the accompanying drawing, Figure l is an inside view of awindow-frame with our shutter, showing the same partly raised. Fig. 2 isa transverse vertical section of the same, showing the shutters closed.Fig. 3 is a horizontal section through the shutters and Fig. 4 s aperspective view, showing a part of the window-frame with the movablesill.

The shutters are formed of a series of plates, A A, of wood or metal,provided at their top and bottom edges with curved flanges a a, of suchshape that when the shutters are extended said flanges will locktogether firmly and securely, as shown in Fig. 2. To each plate issecured a bar, B, provided with slots 1) b. In these slots work pins 01d, which project from a series of jointed metal or wood bars, 0 0,arranged in the form usually known as lazy tongs, and pivoted to thecenters of the bars B B. The slots 1) in the bars B thus direct thelateral movement of the jointed bars forming the lazy-tongs. The shutterthus constructed may be attached to a window or doorframe, on the outeror inner side of the casing, in such a manner as to fold above, below,or at the sides, and kept in position by means of stops or grooves dattached to or formed in the frame. The shutter is worked or operated bya wheel, pinion, and crank, G, with a rope or chain, (2 or theirequivalents, attached to the upper or lower end of the lazy-tongs, according as the shutter is to be folded above, below, or at the sides,the rope or chain passing over sheaves or pulleys attached to the frameor building in such a way that the shutter can be operated from theinside. The shutter is held in any desired position by a pawl, e, andratchet-wheel, f, in connection with the drum upon which the rope orchain is wound. 'When it is desired to fold the shutter below, weprovide the window-frame with a movable or sliding sill, D, which coversa box or receptable in the bottom of the frame. The sill D is drawn outto uncover said receptacle, when the shutter may be folded down into thesame, after which the sill is placed in position again, keeping theshutter entirely out of sight.

Having thus fully described our invention, what we claim as new, anddesire to secure by Letters Patent, is-

l. The combination of the flanged plates A A, slotted bars B B, andlazy-tongs O, with pins 61 d, substantially as and for the purposesherein set forth.

2. The combination, with the flanged plates A A, slotted bars B B, andlazy-tongs O, of the wheel and crank Gr, rope or chain 61 pawl 0, andratchet-wheelf, all substantially as and for the purposes herein setforth.

In testimony that we claim the foregoing we have hereunto set our handsthis 2d day of January, 1874.

SYLVANUS M. GILLETT. ROBERT T. SILL. SAMUEL K. CRAWFORD.

Witnesses:

A. H. HACKETT, O. L. EVERT.

